Watch movement



(No Model.) 2.Sheets-Sheet 1.

E. E. THIEL.

WATCH MOVEMENT. No. 479,923. Patented Aug. 2, 1892.

WITNESSES. INVENTOH: a. a; $494 ATTORNEYS.

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I (No Model.) 2 Sheets-Sheet 2.

E. E. THIEL.

WATCH MOVEMENT. No. 479,923. Patented Aug. 2, 1892.

v WITNESSES. INVENTQH. M P a r fj zd.

A TTORNE Y8.

UNTTEE STATES PATENT @FEICE.

ERNST ED. THIEL, OF RUHLA, GERMANY.

WATCH-MOVEMENT.

EPECIFIGATION forming part of Letters Patent N 0. 479,928, dated August2, 1892. Application filed March 23, 1892. Serial No. 426,062. (Nomodel.)

To all whom it may concern:

Be it kn own that I, ERNST ED. THIEL, a citizen of the Empire ofGermany, residing in Ruhla, in the Grand Duchy of SaXe-VVeimar, andEmpire of Germany, have invented certain new and useful Improvements in\Vatch- Movements, of which the following isa specification.

The object of this invention is to furnish an improved stem windingwatch, the supporting-plates, gear-wheel, and other parts of which arestamped out of sheet metal; and the invention consists in differentnovel features of constructionsuch as a cap-which forms at the same timethe spring-barrel of the movement, in connection with the back plate andthe winding-wheel of the spring, which is located close to the cap, andof the connection of the two main plates, which support the bearings forthe different arbors of the wheeltrain of the movement, all of whichwill be fully described hereinafter, and finally pointed out in theclaims.

In the accompanying draWings,.Figure 1 represents a front View of myimproved watch. Fig. 2 is a rear view of the same, with the back in openposition, so as to give a rear view of the movement. Fig. 3 is avertical central section on line 3 3. Fig. 4 is a top view of the same,the dial being removed. Fig. 5 is a top view of the train ofgear-wheels, shown as supported between the main plate of the movement.Fig. 6 is a detail top view of the mainspring and the winding-wheel, onwhich the same in supported. Fig. 7 is a detail top view of thewinding-wheel, shown as detached from the movement; and Figs. 8 and 9are respectively a bottom view and a vertical section on line 9 9, Fig.8, showing the connection of the dial-plate with the main plate of themovement.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the case of my improved watch,which case is made of nickle or other suitable material and providedwith a hinged back A and a front bezel A in which a crystal A is held.To the watch-case center the pendant B is applied, which receives thestem B, by which the main spring is wound up by turning the crown of thesaid stem. The inner end of the stem 13 is supported on a bridge Z),that is applied to the bent-up side flange p of the back plate P of themovement, the stem being provided with a collar Z), that defines, inconnection with the flange 1) and the bridge Z), the proper position ofthe stem. The pinion a on the stem meshes with the teeth of awindingwheel lV, that is stamped out from suitable sheet metal and thatis placed on the rear end of the arbor V of the first wheel V of themovement. The winding-wheel V is provided near its toothed circumferencewith a number of bent-up lugs W, that are punched out from the web ofthe Wheel so as to extend at right angles therefrom, said lugs servingto support the mainspring S, the outer end of which is attached to oneof said lugs XV, while the inner end is attached to a disk D on thearbor V of the first wheel V, as shown in Fig. 6.

The mainspring S is inclosed and protected by a cap-plate C, which isprovided with a flat cylindrical portion that extends over themainspring S, as shown clearly in Fig. 3, and which cap-plate isattached by means of screws 0 to the plate 1) of the movement, as shownin Fig. 2, and the cap-plate O, the plate P, and the lugs of thewinding-wheel XV form thus the spring-barrel of the watch-movement. Thespring-pawl P fastened to the back plate P, engages the teeth of thewindingwheel, as shown in dotted lines in Fig. 6, and passes through anopening an in the cap 0, so as to prevent the movement of thewindingwheel in the direction opposite to the winding motion of thesame. The arbor M of the minute-hand M passes centrally through thearbor V of the first wheel V, which arbor V is made square at the pointof connection with the disk D, to which the inner end of the mainspringis applied, as shown in Fig. 6. The arbor M of the minute-hand isconnected friction-tight to the arbor V of the first wheel and providedat its rear end with a button M by which it can be turned independentlyof the arbor of the first wheel, so as to set the minute-hand, and byturning of the same the hour-hand N, the usual transmitted mechanismsbeing interposed between the arbor of the minute-hand and the hour-hand,so as to move the latter in proper time with the minute-hand. Forsetting the watch the back has to be opened, so that the button M at therear can be taken hold of, and thereby the minute-hand set, which alsoproduces the setting of the hour-hand in the usual manner by themechanisms shown in Figs. 3 and 4. The arbors of the train ofgear-Wheels by which the motion of the mainspring is transmitted to thesecond-hand and the arbors ot' the escapement and the balance-wheel aresupported in bearings of the plates P P, which are connected with eachother by the bent-up flanges p of the back plate P, which flanges passthrough the slots of the top plate P, and are locked to the same bymeans of beveled keys K, that engage the recessed lugs at the upper endsof said flanges. as shown in Figs. 3 and at. The plates P P are providedwith the necessary bearings for the arbors of the different transmittinggear-wheels, and the flangesp are provided with slots, so as to give therequired space for the gearwheels and for the pinion. The bridge I), onwhich the inner end of the stem is supported, is also made of sheetmetal and applied by bentup lugs 11 to one of the bent-up flanges p ofthe back plate P, as shown clearly in Figs. 3 and 5. The transmittinggear-wheels operate the esoapement and thereby the balancewheel in theusual manner, there being no novelty in the transmitting devices, withthe exception that all the wheels are stamped out of sheet metal, Whilethe pinions are cut out of calibrated tubes, so that the expense of thesame is reduced as low as possible. The movement is regulated by thelever of the balance, the outer end of which pro jects through anopening L in the cap (3, as shown in Fig. 2, so that the movement can beset fast or slow, as required, and thereby the timepiece regulated tothe correct time. The dial-supporting plate E is provided with depressedportions E at diametrically-opposite points and circular openings andbushin gs E at the center of the depressed portions, as shown in Figs. 8and 9, which bushings fit into openings 0 of the top plates P, so as toform thereby the reliable connection between the dial-plate and the topplate P. The dialplate E is provided with openings for the minute-handarbor and the hub of the hourwheel and with an opening for the arbor ofthe seconds-hand .I. The dial I is printed in suitable manner and pastedon the dial-plate.

By the construction of the watch-movement described nearly allot theparts of the same can be stamped out of sheet metal and furnished at avery low expense, so that the reliable moving and regulating of themovement is obtained, which can be wound up by turning of the spring andwhich runs for fourteen hours at a time.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination, with the front and back plates ofa watch-movement, said plates being connected by bent-up flangesretained by locking-keys, of a bridge attached to one flange of the backplate for supporting the inner end of the winding-stem, substantially asset forth.

2. In a watch-movement, the combination of a back plate having bent-upflanges at diametrically-opposite points, said flanges having recessedlugs at their free ends, with a top plate having openings through whichthe lugs can pass, and wedge-shaped key-plates inserted in the recessedings of the flanges and resting on the top plate for the purpose oflocking said plates together, substantially as set forth.

3. In a watch, the combination, with a top plate having openings atdiametrically-opposite points, of a dial-plate provided with depressionsand bushings, the latter fitting into the openings of the top plate,substantially

